View source for Debian9 network settings


=Debian9 install and configure wifi=

install wifi firmware
* add non-free repositories to /etc/apt/sources
 aptitude install iwlwifi-firmaware

Load the iwlwifi module
 modprobe -r iwlwifi ; modprobe iwlwifi

Will give the links of the physical addresses

 ls -l /sys/class/net

 sudo dmesg | egrep --color -C 2 'eth[0-9]|e[nm][0-9]|p[0-9][ps][0-9]|wlan|wl[0-9]|wlp[0-9]'
<pre>
lrwxrwxrwx 1 root root 0 Feb  5 07:23 enp0s25 -> ../../devices/pci0000:00/0000:00:19.0/net/enp0s25
lrwxrwxrwx 1 root root 0 Feb  5 07:23 lo -> ../../devices/virtual/net/lo
lrwxrwxrwx 1 root root 0 Feb  5 07:40 wlp3s0 -> ../../devices/pci0000:00/0000:00:1c.1/0000:03:00.0/net/wlp3s0
</pre>

My wifi interface is wlp3s0

Configure /etc/network/interfaces:
<pre>
allow-hotplug wlp3s0
iface wlp3s0 inet dhcp
</pre>

check ifconfig. wlp3s0 should be there

Configure your network manager.

==Links on Debian 9 Network Settings:==

https://major.io/2015/08/21/understanding-systemds-predictable-network-device-names/

https://www.serverlab.ca/tutorials/linux/administration-linux/how-to-configure-debian-9-network-settings/

https://blog.learningtree.com/new-names-linux-network-interfaces/


[[Section::Code Notes]]
[[Date::2019]]